Water-filter.



Patented Feb. 5, I901.

M. MARX & A. WOLFF.

WATER FILTER.

(Application filed Aug. 28, 1900.)

(No Model.)

Tn: yaonms vzrzns 00., wno'ro-umou WASHINGTON, mc.

UNITED STATES PATENT OFFICE.

MICHAEL MARX, OF PHILADELPHIA, PENNSYLVANIA, AND ABRAHAM I WOLFE, OF NEW YORK, N. Y.

WATER-FILTER.

SPECIFICATION forming part of Letters Patent No. 667,239, dated February 5, 1901. Application filed August 23, 1900. Serial No. 27,794. (No model.)

To all whom, it may concern.-

Be it known that we, MICHAEL MARX, residing at Philadelphia, Pennsylvania, and ABRA- 7 which forms the shell of the filter.

HAM WOLFE, residing at New York city, New York, citizens of the United States, have invented an Improved Water-Filter, of which the following is a specification.

This invention relates to a Water filter which effects a thorough cleaning of the water and is so constructed that it may be readily taken apart in order to permit the filteringbodies to be washed and renewed.

In the accompanying drawings, Figure l is a longitudinal central section, partly cut away, of our improved filter on line 1 1, Fig. 2. Fig. 2 is a cross-section, partly cut away, on line 2 2, Fig. l.-

The letter a represents an inner vessel, which forms the lower filtering-chamber and which is surrounded by an outer Vessel b,

The vessel a is provided with a coniform double bottom composed of two strainers, of which the upper strainer a is formed of fine wire-netting, while the lower strainer a is formed of a foraminated metal plate. Within the vessel a are contained two filtering-bodies, the upper one, 0, made of sponge and the lower one, 61, made of marble chips or dust.

At its upper end the vessel a is provided with a threaded neck a arranged concentric to a threaded neck I) on the upper end of shell I). The parts a b are adapted to be engaged, respectively, by apair of threaded concentric flanges e e of a cap or cover e, so that by turning the cover its flanges will simultaneously engage or disengage both of the vessels. The cap 6 is provided, furthermore, with the nipple e by which it is secured to the watersupply pipe or faucet, and which communicates with an upper filtering-chamber formed within the flange e. This chamber also contains a filtering-bodyf, composed of sponge, which is confined within the chamber by a pair of strainers g g, that form a removable bottom for the chamber. The strainers g g are supported upon a shoulder a of vessel or and enter with their flanged ends a recess e of flange e. Thus it will be seen that when body J". On the other hand, if the cap is screwed down the strainers will be firmly seated upon shoulder a to confine the filter ing-body within the upper chamber.

The shell b has a conical bottom provided with an orifice 19 through which the percolated water is discharged. Between the vessels a and b a space h is formed that con tains'a textile covering h, slipped over the inner vessel (1 and held thereto by a ring 2', which is clamped between the top of vessel 00 and the flange e of cap e.

As the water passes through the filter it will be first freed from the coarser impurities, which will be retained in the upper filteringchamber. The water is then subjected to the action of the filtering-bodies contained within the lower chamber and which serve to remove the remaining impurities, while the marble-chips in particular serve to impart a pure color to the water. Thus it will be seen that by our improved filter a perfect purification is obtained and that the filter may be readily taken apart for cleaning purposes or for renewing the filtering-bodies.

What we claim isl. A filter composed of an outer perforated shell, an inner vessel having a neck, a cap hav-- ing a pair of threaded flanges adapted to engage the shell and inner vessel respectively, a filtering-body within the cap, and a filteringbody within the inner vessel, substantially as specified.

2. A filter composed of an outer perforated shell, an inner vessel having an upper neck and a lower straining-bottom, a filtering-body contained within the vessel, a cap having a pair of threaded flanges adapted to engage the shell and inner vessel respectively, a filteringbody within the cap, and a removable strainer between the cap and the inner vessel, substantially as specified.

MICHAEL MARX. ABRAHAM WOLFF. Witnesses:

F. v. BRIESEN, WILLIAM SOHULZ. 

